Eaton LD3500 - 500 A, 600 V, 3-Pole Circuit Breaker | AmpState

The Eaton LD3500 500A, 600V, 3-Pole molded case circuit breaker is a rugged, high‑capacity protection solution designed for dependable branch circuit overcurrent and short‑circuit protection in panelboards and load centers. Built to perform in demanding environments, this 3‑pole MCCB delivers precise protection for large electrical distributions in residential, commercial, and light industrial settings.

Why the LD3500 stands out

• Compact molded case design: Optimizes panel space without sacrificing protection capability, making it ideal for crowded service entrances, subpanels, and retrofit installs where every inch matters.
• Thermal‑magnetic trip unit: Provides stable, repeatable protection performance across a wide range of operating conditions. The combination of thermal and magnetic tripping helps guard against nuisance trips while reliably interrupting dangerous faults.
• OEM‑level compatibility: Engineered to be compatible with matching Eaton OEM loadcenters and panelboards, ensuring a seamless fit and consistent electrical characteristics within existing systems.
• Heavy‑duty, three‑phase protection: 3 poles handle 3‑phase circuits up to 600V, making it suitable for commercial and light industrial electrical distributions as part of a balanced protection strategy.

Technical specifications at a glance

• Manufacturer: Eaton
• Part number: LD3500
• Type: Thermal‑magnetic molded case circuit breaker (MCCB)
• Amperage rating: 500A
• Voltage rating: 600V
• Number of poles: 3
• Application: Branch circuit overcurrent and short‑circuit protection

Ideal use cases

This LD3500 MCCB is designed for installations where high current protection is required without compromising panel layout. It’s well suited for:

• Large residential service panels and multi‑unit installations needing robust 3‑phase protection
• Commercial load centers and light industrial distribution boards demanding reliable trip performance
• Panelboard retrofits and upgrades where matching OEM components streamline compatibility

What this means for you in practical terms

With a 500A rating, the LD3500 provides a clear protection boundary for substantial branch circuits, helping prevent damage from overcurrents and short circuits. The thermal element minimizes nuisance trips during normal temperature fluctuations, while the magnetic element delivers immediate interruption during high‑fault scenarios. The result is safer electrical systems, reduced downtime, and easier maintenance in both new builds and upgrades.

Installation and compatibility insights

Because this breaker is designed for use with matching OEM loadcenters and panelboards, you’ll benefit from a streamlined installation with fewer compatibility questions. Its compact form factor helps maximize interior space in crowded panels, enabling neater terminations and easier wiring routes. When planning replacements or upgrades, confirm that the panelboard or load center specifies compatibility with Eaton LD3500 series breakers to ensure guaranteed performance and consistent electrical characteristics.

Tips for getting the most from your LD3500

• Coordinate protection with the surrounding panel design to maintain balanced loading across phases.
• Schedule periodic inspection of the trip unit if your environment experiences wide temperature swings or mechanical vibrations.
• Keep the part number LD3500 handy for quick cross‑checks with OEM panels to ensure seamless replacement or expansion.

For electricians and facility managers seeking a robust, space‑savvy solution for high‑current distribution, the Eaton LD3500 500A, 600V, 3‑pole molded case circuit breaker delivers reliable protection with the right mix of compact design, precise tripping, and OEM compatibility. It’s the practical choice when you need dependable branch circuit protection that fits cleanly into standard panelboard ecosystems.